SpectrAlert S1224MC 24VDC Wall Mount Siren/Strobe, RedCondition:* New surplus stock, in OEM packaging. * Shelf worn packaging. As pictured. Additional Notes:* Operates on 24V* Easy candela selection* Lower current draw* Easy DIP switch selection for horn options* Easy mounting with QuickClick* Synchronizable with MDL SyncCircuit moduleSpectrAlert System SensorS1224MC